JP3216656B2 - Endoscope insertion aid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of obstetrics and gynecology, and makes it possible to insert an endoscope in close contact with the cervix when performing endoscopic observation and treatment in the uterus. The present invention relates to an endoscope insertion aid to be used.

[0002]

2. Description of the Related Art Conventionally, in the obstetrics and gynecology field, transvaginal observation and treatment of the uterus using an endoscope has often been performed. An endoscope insertion aid that seals the cervix and allows the endoscope to be inserted while maintaining airtightness or watertightness in the uterus,
So-called Portio adapters are used.

[0003] The endoscope insertion aid has a suction mechanism for facilitating close contact with the cervix.

FIG. 21 is an overall sectional view of a conventional endoscope insertion aid. An endoscope assisting device 81 shown in FIG. 21 has a long tubular main body 83 having an insertion path 82 into which an endoscope is inserted, and a cervix 84 provided at the distal end of the tubular main body 83. And a suction tube 86 provided in parallel with the tubular main body 83 from the rear end side of the uterine retractive part 85 and bent in a direction away from the tubular main body 83 halfway. I have.

[0005] The outer diameter of the distal end of the tubular main body 83 is formed in such a size that it can be inserted by bringing the outer peripheral surface into close contact with the inner surface of the cervix 87. At the rear end of the tubular main body 83, a rubber stopper 8 having an insertion opening 88 into which an endoscope can be airtightly inserted is provided.
9 are provided. The insertion path 82 is open at the tip of the tubular main body 83.

On the other hand, the uterine retracting portion 85 has an inner diameter larger than the outer diameter of the tubular main body 83. Further, the tip of the uterine retraction unit 85 and the tip of the tubular main body 83 are
They are located on almost the same plane.

[0007] The suction tube 86 has a suction passage 90 therein, penetrates from the end of the suction passage 90 to the inner surface of the uterine retraction unit 85, and has a suction port 91 located on the inner surface of the uterine retraction unit 85. It is open at. Further, the suction tube 86 has a valve 92 and a connection fitting 93 at the end thereof, and can be connected to a suction device (not shown).

[0008] The endoscope insertion aid 81 is inserted into the vagina, the front end of the tubular body 83 is inserted into the cervix 87, and the cervix 84 is inserted into the inner surface of the uterine retraction unit 85 and the tubular body. 83 and the outer peripheral surface of the distal end portion 83. Further, by connecting the end of the suction tube 86 to the suction device and performing suction, a negative pressure is applied to the inside of the uterine retraction unit 85,
After bringing the cervix 84 into close contact with the uterine retraction unit 85,
By inserting an endoscope from the insertion opening 89 of the rear end portion of the tubular body 83 is inserted into the uterus, from the endoscope, to expand the uterus by feeding a gas or liquids to the child <br/> Miyauchi, Observe and treat.

[0009]

However, FIG.
As shown in FIG. 5, when a part of the cervix 84 is sucked, the suction port 91 is closed, and the cervix 84 is not evenly suctioned in the circumferential direction. May not be able to adhere to the uterine retraction unit 85 in some cases.

The present invention has been made in view of the above circumstances, and an object thereof is to uniformly suction a body wall or the like, for example, the cervix, so that the cervix can be prevented from shaking. Another object of the present invention is to provide an endoscope insertion aid that can be uniformly brought into close contact in the circumferential direction.

[0011]

According to the present invention, there is provided an endoscope insertion aid according to the present invention, comprising: a main body having an insertion conduit for inserting an endoscope; An outer cylinder to be attached, a suction chamber formed between the insertion conduit and the outer cylinder, a partition section for dividing the suction chamber into a front suction section and a rear space section, and A plurality of communication holes provided at different angles with respect to a circumferential direction of a long axis of the insertion pipe and communicating the suction section and the space, and a suction pipe communicating with the space and connected to the suction device; And a plurality of communication holes are evenly arranged in a circumferential direction of a long axis of the insertion channel. Further, an endoscope insertion aid according to the present invention includes a main body having an insertion conduit for inserting an endoscope, an outer cylinder provided around the insertion conduit and attached to the main body, A suction chamber formed between the insertion pipe and the outer cylinder, a partition section that partitions the suction chamber into a front suction section and a rear space section, and between the partition section and the outer cylinder. A communicating portion formed and formed over the entire circumference in the circumferential direction of the long axis of the insertion conduit and communicating the suction portion and the space portion; and a suction conduit communicating with the space portion and connected to the suction device. It is characterized by having. Further, the endoscope insertion aid according to the present invention has a main body having an insertion conduit for inserting an endoscope, and an outer cylinder provided around the insertion conduit and attached to the main body, A suction chamber formed between the insertion conduit and the outer cylinder, and a suction chamber provided behind the suction chamber;
Together partitioned into a space portion of the partition portion having a plurality of holes which are uniformly disposed with respect to the circumferential direction of the long axis of the insertion pipe
And the space portion communicating with the partition portion having the plurality of holes.
And a suction line connected to the suction device via the suction line. Further, the endoscope insertion aid according to the present invention is characterized in that the endoscope insertion assisting tool is provided with attachment means for detachably attaching the outer cylinder to the main body.

[0012]

In [created for above-described structure, in a state where this endoscope insertion aid is inserted into the body, when the suction by the suction device connected to the suction conduit, at this time, the suction pressure, suction channel, intake
Space of引室, the communication hole, Ri Kuwawa <br/> the body through the suction portion of the suction chamber, the suction pressure of the suction chamber, it equally in the circumferential direction
Thus, the body wall or the like in the body is evenly sucked into the suction chamber and closely adhered thereto. In this state, the endoscope is inserted through the insertion channel.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 relate to a first embodiment of the present invention. FIG. 1 is an overall sectional view of an endoscope insertion aid, and FIG.
FIG. 3 is a cross-sectional view taken along line A, FIG. 3 is a cross-sectional view showing that an outer cylinder has been replaced, and FIG. 4 is an explanatory view showing a combination of an endoscope insertion aid and an endoscope.

The endoscope insertion aid 1 of the first embodiment shown in FIG. 1 has a substantially cylindrical main body 2 and a cylindrical outer cylinder 3 which can be screwed onto the outer periphery of the main body 2. . The main body 2 has a cylindrical, large-diameter outer cylinder joint 4 in the center thereof,
A partition plate 5 formed in the shape of a disk in front of the partition plate; an inner cylindrical portion 6 formed in a small diameter and in front of the partition plate 5;
At the rear end side of the outer cylinder joint portion 4, a holding portion 7 formed in a long and tubular shape by extending the inner cylinder portion 6, and at the rear end of the outer cylinder joint portion 4 in parallel with the holding portion 7. And a suction pipe 8.

The outer cylinder joint 4 is formed in a columnar shape, and a male screw 9 screwed to the outer cylinder 3 is formed on the outer peripheral side. An O-ring 10 is externally fitted in front of the male screw 9 so that the outer cylinder 3 and the outer cylinder joint 4 of the main body 2 can be screwed tightly. By screwing the outer cylinder 3 and the outer cylinder joint 4 together, a space is formed between the outer cylinder 3 and the inner cylinder 6 of the main body 2, and this space is hereinafter referred to as a suction chamber 1b. A body-side opening 1a facing the body is formed on the distal end side of the suction chamber 1b when the body is inserted into the body. As shown in FIG. 2, a plurality of conductive holes 11 penetrating the partition plate 5 are formed in the partition plate 5 at equal positions in the circumferential direction. The conduction hole 11 and the suction chamber 1b communicate with each other.

A small cylindrical portion 12 having an outer diameter that does not block the conduction hole 11 and is formed slightly before the partition plate 5 is formed in the outer cylinder joining portion 4. I have. The outer diameter of the inner cylindrical portion 6 is determined by setting the outer peripheral surface to
For example, it has such a size that it can be inserted in close contact with the inner surface of the cervix 87 shown in FIG. The tip of the inner cylinder 6 and the tip of the outer cylinder 3 are located substantially on the same plane.

A suction tube 8 is formed at the rear end of the outer cylinder joining portion 4 in a direction parallel to the holding portion 7 and bent in a direction away from the holding portion 7 halfway toward the rear of the main body 2. I have.

An insertion path 13 for inserting an endoscope passes through the main body 2 from the holding portion 7 to the distal end of the inner cylindrical portion 6 on the center axis of the inner cylindrical portion 6. Each end of the holder 7 is open. An insertion port 1 through which an endoscope can be inserted into the insertion path 13 in an airtight manner is provided at an end of the holding section 7.
The rubber stopper 15 having the number 4 is mounted.

On the other hand, the suction pipe 8 has a suction passage 16 therein, penetrates from the end of the suction pipe 8 to the front end of the outer cylinder joint 4, and is located at the front end of the outer cylinder joint 4. 17
It is open at. Further, the suction tube 8 is provided with a valve 18 and a connection fitting 19 at the end thereof, and can be connected to a suction device described later. A space surrounded by the partition plate 5, the outer cylinder 3, the outer cylinder joint 4, and the small-diameter portion 12 and communicating the suction port 17 and the conduction hole 11 is defined as a communication space 20.
Called.

Therefore, the suction pipe 8, the communication space 20, and the suction chamber 1b communicate with each other through the suction port 17 and the conduction hole 11, and the body wall in the body is sucked by the suction device. And the like can be sucked into the suction chamber 1b from the body opening 1a.

With this configuration, as shown in FIG. 4, the endoscope 21 is combined with the endoscope insertion aid 1 and inserted into the body, the suction device 22 is connected to the connection base 19, and the suction port 17 is connected.
A suction pressure is applied toward the communication space 20. The suction pressure applied to the suction port 17 is reduced by the suction port 17 and the conduction hole 11.
Are transmitted evenly to each of the plurality of conductive holes 11 by the communication space 20 that communicates. The plurality of the introducing hole 11 arranged in the circumferential direction, and the body wall of the body which is opposite the hole 11, for example, takes uniformly suction pressure on the peripheral toward the cervix 84, uterus suction chamber 1b The neck 84 is aspirated. In this way, the present endoscope auxiliary insertion tool 1 can closely fit the cervix 84 in the suction chamber 1b without shifting in the circumferential direction.

As shown in FIG. 3, the endoscope insertion aid is replaced with an outer cylinder 3A having a large inner diameter, so that the optimal suction and suction can be performed in accordance with the size of the cervix 84 which varies depending on the individual. Adhesion is possible.

In the first embodiment, the plurality of conductive holes 11 are provided in the partition plate 5 so as to penetrate at equal positions in the circumferential direction.
The suction pressure is uniformly applied to the cervix 84 around the circumference, so that the cervix 84 can be evenly sucked and brought into close contact without unevenness. In other words, the cervix 84 can be uniformly and circumferentially adhered to the endoscope insertion aid 1.

In this embodiment, since the external thread 9 is formed in the external cylinder joint 4 and the external cylinder is screwed to the external thread 9 to fix the external cylinder, the external cylinder having a different shape can be easily replaced. it can. Therefore, it is possible to provide an endoscope insertion aid that can perform optimal suction and close contact with the size of the cervix 84 simply by replacing the outer cylinder.

FIGS. 5 and 6 relate to a second embodiment of the present invention. FIG. 5 is an overall sectional view of an endoscope auxiliary insertion tool, and FIG.
FIG. 7 is a sectional view taken along line BB of FIG. The second embodiment differs from the first embodiment only in the configuration of the partition plate 5 and the conduction hole 11. Other configurations are the same as those of the first embodiment, so only different configurations will be described, and the same configurations and operations as those of the first embodiment will be described.
The same reference numerals are given and the description is omitted.

In the second embodiment, as shown in FIGS. 5 and 6 (a), a space formed by making the outer diameter of the partition plate 5A smaller than the inner diameter of the outer cylinder 3 is used as the conduction hole 23. As shown in FIG. 6A, the conduction hole 23 is formed so as to make a round on the inner diameter side of the outer cylinder 3. The conduction hole 23 communicates with the communication space 20.

As a modification of the second embodiment, FIG.
As shown in (b), the partition plate 5B may be formed with four elongated conductive holes 24. In the second embodiment and the modified example, the other configurations, functions and effects are the same as those of the first embodiment, and the description will be omitted.

FIG. 7 is an overall sectional view of an endoscope auxiliary insertion tool according to a third embodiment of the present invention. In the third embodiment, the partition plate 5A of the second embodiment is formed separately from the main body 2 so as to be fitted and fixed to the inner cylindrical portion 6, thereby facilitating manufacture . In the third embodiment, as shown in FIG. 7, a soft member 25 is provided at the outer cylinder joint 4 in place of the male screw 9 of the first embodiment and the second embodiment. 3 (or 3A). In addition, since the configuration and operation are the same as those of the first embodiment, the same reference numerals are given and the description is omitted. Further, the effects are the same as those of the first embodiment, and the description is omitted.

Next, various endoscopes used together with the endoscope insertion aid will be described. The endoscope 31 shown in FIG.
It comprises a sheath 32, a bridge 33, and a scope body.

The sheath 32 comprises an elongated hollow sheath insertion tube 35 and a sheath body 36 provided at the rear end of the sheath insertion tube 35. This sheath body 36
A drain port 37 provided with a valve in the middle protrudes from an outer peripheral surface of the sheath insertion pipe section 35 and communicates with the inside of the sheath insertion tube section 35. At the rear end of the sheath body 36, a mounting portion 38 to which the bridge 33 and the like can be mounted is formed. A mounting hole 38a is formed on the rear end face side of the mounting portion 38. A notch 39 is formed at the distal end of the sheath insertion tube 35. The notch portion 39 has a notch guide portion 39a on the rear end side, which is thinner than the distal end side and has a width equal to or slightly larger than that of a soft forceps described later.

The bridge 33 is connected to a hollow bridge insertion tube 40 that can be inserted into the sheath insertion tube 35 and into which the scope body 34 can be inserted, and to the rear end of the bridge insertion tube 40. A substantially columnar bridge body 41, a substantially cylindrical grip 42 connected to the rear end of the bridge body 41, and a distal end of the grip 42, which allow the scope body 34 to be inserted therethrough. And an insertion end 43 provided on the rear end face side.

The bridge main body 41 is provided with a water supply port 44 provided with a valve in the middle thereof, protruding from the outer peripheral surface thereof.
Communicates with the internal conduit of the bridge insertion tube 40. A water outlet 4 is provided on the outer peripheral surface of the bridge body 41.
A forceps insertion tube portion 45 through which the soft forceps 55 can be inserted is provided on the opposite side of the inside of the bridge 4, and is opened at the tip end surface of the bridge body 41. The forceps insertion tube 45 is provided obliquely rearward with respect to the axial direction of the bridge insertion tube 40.
You. Further, a tapered connection portion 46 having a small diameter at the distal end side is formed at the distal end side of the bridge main body portion 41. The tapered connecting portion 46 is connected to the sheath 3
2 through the opening of the bridge 33, and the soft forceps 55 through the passage of the sheath insertion tube portion 35 through the opening of the bridge 33.
Is inserted.

In the bridge 33, an insertion path 47 into which the scope body 34 can be inserted penetrates from the insertion end 43 to the tip of the bridge insertion tube 40. As shown in FIGS. 10 and 11, the cross-sectional shape of the bridge insertion tube portion 40 is a half-moon shape in which one end of a circle is cut off. This shape is formed from the tip of the bridge insertion pipe portion 40 to at least the position of the water supply pipe 44. 10 is a sectional view taken along line DD of FIG. 8, and FIG. 11 is a sectional view taken along line EE of FIG.

8 and 9 (F in FIG. 8) at the tip of the bridge insertion tube portion 40, similarly to the structure of the conventional bridge.
As shown in a direction arrow), a forceps raising base 48 capable of raising the soft forceps is provided. The grip 49 provided at the rear is provided with a raising knob 49 for raising a forceps raising table 48.
Are connected by two raising wires 50 shown in FIG.

In the scope main body 34, an elongated insertion portion 51, a main body 52, and an eyepiece 53 are connected in order from the distal end side. A connection portion 54 is formed on the distal end surface side of the main body 52, and the connection portion 54 and the insertion end 43 of the bridge 33 can be connected. As shown in FIGS. 10 and 11, the outer surface of the insertion portion 51 of the scope main body 34 and the inner surface (semicircular portion) of the bridge insertion tube portion 40 are in contact with each other at at least two places.

In this configuration, as shown in FIG. 8, the bridge 32 and the scope main body 34 are combined in
It is inserted into the body, and the flexible forceps 55 is guided from the opening of the forceps insertion tube 45 to the tip of the bridge insertion tube 40 for use. 10 and 11, the bridge insertion tube 4
The space between 0 and the sheath insertion tube portion 35 and the space between the insertion portion 51 of the scope main body 34 and the bridge insertion tube 40 become a drainage channel 56 and a water supply channel 57, respectively. The water supply path 44 communicates with the water supply path 57, while the water discharge path 37 communicates with the drainage port 37.

Insert the endoscope 31 into the endoscope insertion aid 1
Through the water supply channel 57 to expand the uterus endoscope, and the uterus is filled with the liquid. However, with various treatments, bleeding and turbidity of the liquid due to crushed pieces of tissue fragments occur, and the field of view of the scope main body 34 becomes unclear. Therefore, while draining the turbid liquid from the drain port 37, the liquid is further fed from the water supply port 44. This restores the clarity of the field of view of the scope body 34.
After this, adjust the water supply and drainage to make them equal.
By doing so , a clean liquid always flows into the visual field, and a clear endoscopic visual field can be secured.

As shown in FIG. 12, the flexible forceps 55 is guided to the distal end of the sheath insertion tube 35, and the forceps raising knob 49 is moved.
12, the forceps raising table 48 is raised as shown in FIG. 12, and the soft forceps 55 are raised to perform a procedure such as resection. When the flexible forceps 55 are raised, the flexible forceps 55 are guided by the notch guide portions 39a, so that no displacement occurs and a safe and reliable treatment can be performed.

The space between the bridge insertion tube portion 40 and the sheath insertion tube portion 35 is provided with a drainage channel 56 and a scope body 34.
The space between the insertion section 51 and the bridge insertion tube 40 is used as the water supply channel 57, so that continuous perfusion can be performed without using the double sheath, and the entirety of the whole is not used because the double sheath is not used. The diameter can be reduced. By making the cross-sectional shape of the bridge insertion pipe part 40 partially arc-shaped and non-circular, the amount of water supply and drainage can be increased.

The cross-sectional shape of the bridge insertion tube portion 40 is partially arcuate and non-circular, so that the amount of water supply and drainage can be increased.

The bridge insertion tube section 40 is located inside the sheath insertion tube section 35, and has a partly flat cross section.
Since it has, from the forceps insertion tube portion 45, for example, soft forceps 5
When 5 is inserted, it can be inserted to the tip without shifting downward. Further, since two or more locations on the inner surface of the tube of the bridge insertion tube portion 40 are in contact with the outer surface of the insertion portion 51 of the scope body 34, the positioning of the scope body 34 can be reliably performed.

Further, through the mounting portion 38 of the sheath 32,
Anything other than the bridge 33 can be connected.

FIGS. 13 and 14 show FIGS. 10 and 11 respectively.
A bridge insertion tube 40A having a different cross-sectional shape from the bridge insertion tube 40 shown in FIG. As shown in the drawing, the cross-sectional shape of the bridge insertion tube portion 40A has a shape in which a part of a circle is depressed inward. Here, FIG.
FIG. 14 is a sectional view taken along line DD of FIG. 8, and FIG. 14 is a sectional view taken along line EE of FIG. Only different configurations will be described, and similar configurations will be denoted by the same reference numerals and description thereof will be omitted.

The bridge insertion tube portion 40A shown in FIG. 13 and FIG.
Also, the penetration of the soft forceps 55 can be improved as compared with the bridge insertion tube portion 40 shown in FIG. The other configuration and operation and effect are the same as those of the bridge insertion tube section 40 shown in FIGS.

In the endoscope 60 shown in FIG. 15, optical scissors forceps 61 are used instead of the bridge 33 of the endoscope 31 shown in FIG. The optical scissors forceps 61 can be inserted into the sheath insertion tube portion 35 of the sheath 32 and can be inserted into the hollow insertion tube portion 4 into which the scope body 34 can be inserted.
0, scissors 62 provided at a position parallel to and long at the distal end of the insertion tube 40, a substantially cylindrical main body 63 connected to the rear end of the insertion tube 40, and a main body 63 A handle 64 for opening and closing the scissors 62 provided at the rear of the body 63 and a connection end 65 connected to the rear end of the body 63. In addition, the DD line and the E- line in FIG.
The cross-sectional shape of the line E is shown in FIG. 10 (or FIG. 13), respectively.
And FIG. 11 (or FIG. 14). FIG. 16 shows the details of the distal end portion of the endoscope 60, particularly the scissors 62.

As shown in FIGS. 17A and 17B, the scissors 62 of the optical scissors forceps 61 are characterized by the shape of the blades 66a and 66b. That is, the blades 66a, 6 of the scissors 62
When the blade 6a is opened, the blade surfaces of the blades 66a and 66b are arranged along the approximate line 67 of the visual field frame of the scope body 34 so that the blades 66a and 66 are used for observation by the scope body 34.
The shape has no vignetting in the visual field due to b.

In addition, an excessive cut prevention stopper, which is conventionally provided on the handle portion 64 or the like, is attached to the blade 66b to facilitate manufacture . Reference numeral 68 denotes an excessive cut prevention stopper.

In the endoscope shown in FIG. 18, an optical student forceps 69 is used in place of the bridge 32 shown in FIG. The optical student forceps 69 is provided in parallel with the insertion tube section 40. As shown in FIG. 19, the blades 70a and 70b of the optical student forceps 69 are also in the open state like the blades of the scissors 62, and are shaped so as to reduce vignetting in the visual field. Other configurations and effects are the same as those of the endoscope shown in FIGS. 8 and 13, and the same reference numerals are given and the description is omitted.

In the endoscope shown in FIG. 20, a replace handle 71 is used in place of the bridge 33 shown in FIG. This reject handle 71 is connected to the sheath 32
A hollow insertion tube portion 40 that can be inserted into the sheath insertion tube portion 35 and that can insert the scope main body 34 therein, and an electrode 72 that is provided at the distal end of the insertion tube portion 40 so as to be movable back and forth. A substantially cylindrical main body 73 connected to the rear end of the insertion tube 40; and a handle 74 provided at the rear end of the main body 73 and moving the electrode 72 back and forth.
A guide rod 75 connected to the rear end of the main body 73 and guiding the handle 74; and a guide rod 75 connected to the rear end of the guide rod 75 and
And a mounting end 76 capable of mounting. Other configurations and effects are the same as those of the endoscope shown in FIG. 8 and FIG.

[0050]

As described above, according to the endoscope insertion aid of the present invention, the cervical portion, such as the body wall of the body, is evenly sucked, so that the cervical portion can be prevented from flexing. There is an effect that the contact can be uniformly made in the direction.

[Brief description of the drawings]

FIG. 1 is an overall cross-sectional view of an endoscope insertion aid according to a first embodiment.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view showing that an outer cylinder is replaced.

FIG. 4 is an explanatory view showing a combination of an endoscope insertion aid and an endoscope.

FIG. 5 is an overall sectional view of an endoscope auxiliary insertion tool according to a second embodiment.

FIG. 6 is a sectional view taken along line BB of FIG. 5;

FIG. 7 is an overall sectional view of an endoscope auxiliary insertion tool according to a third embodiment of the present invention.

FIG. 8 is a cutaway view showing the entire endoscope.

FIG. 9 is an oblique view in the direction of arrow F in FIG. 8;

FIG. 10 is a sectional view taken along line DD of FIG. 8;

FIG. 11 is a sectional view taken along line EE of FIG. 8;

FIG. 12 is a sectional view of the distal end portion of the endoscope shown in FIG. 8;

FIG. 13 is a cross-sectional view taken along the line DD of FIG. 8, which is different from FIG. 10;

FIG. 14 is a sectional view taken along line EE of FIG. 8, which is different from FIG. 10;

FIG. 15 is a cutaway view showing the entire endoscope.

FIG. 16 is a perspective view in the direction of arrow G in FIG. 15;

FIG. 17 (a) is an enlarged view of scissors. FIG. 17B is an explanatory diagram showing a relationship between scissors and an endoscope visual field.

FIG. 18 is a cross-sectional view of the distal end portion of the endoscope different from FIGS. 8 and 15;

FIG. 19 is an explanatory diagram showing a relationship between optical student forceps and an endoscope visual field.

FIG. 20 is a cutaway view showing the entire endoscope.

FIG. 21 is a sectional view of a conventional endoscope insertion aid.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Endoscope insertion assistance tool 1a ... Body inner opening 1b ... Suction chamber 2 ... Main body 3 ... Outer cylinder 5 ... Partition plate 8 ... Suction tube 11 ... Conducting hole 17 ... Suction port 20 ... Communication space

Claims (5)

(57) [Claims] Having a insertion conduit for insertion of claim 1 endoscope
Main body portion, which is provided around the insertion conduit and is attached to the main body portion.
Outer cylinder , a suction chamber formed between the insertion conduit and the outer cylinder, and partitioning the suction chamber into a front suction unit and a rear space unit.
A partition portion , provided in the partition portion, in a circumferential direction of a long axis of the insertion conduit;
The suction part and the space part
A plurality of communication holes through which the air flows, and a suction pipe which communicates with the space and is connected to a suction device.
An endoscope insertion aid, comprising: 2. A communication device according to claim 1, wherein said plurality of communication holes are formed in a length of said insertion conduit.
It is characterized by being evenly arranged in the circumferential direction of the shaft.
The endoscope insertion aid according to claim 1 . 3. An insertion tube for inserting an endoscope.
Main body portion, which is provided around the insertion conduit and is attached to the main body portion.
Outer cylinder , a suction chamber formed between the insertion conduit and the outer cylinder, and partitioning the suction chamber into a front suction unit and a rear space unit.
A partition, and the insertion conduit formed between the partition and the outer cylinder;
Formed over the entire circumference in the circumferential direction of the long axis,
A communication part that communicates the suction part and the space part, and a suction conduit that communicates with the space part and is connected to the suction device
The endoscope insertion aid, characterized in that it comprises, when. 4. A main body having an insertion conduit for inserting an endoscope, an outer cylinder provided around the insertion conduit and attached to the main body, the insertion conduit and the outer cylinder a suction chamber formed between the provided behind the suction chamber, suction the suction chamber on the front side
Along with partitioning the pulling portion and the space portion on the rear side, a plurality of holes arranged evenly in the circumferential direction of the long axis of the insertion conduit are formed.
And a partition having the plurality of holes, and communicating with the partition having the plurality of holes through the space.
And a suction conduit connected to the suction device. 5. The outer cylinder is detachable from the main body.
Claims characterized by comprising attaching means for attaching to
Item 5. The endoscope insertion aid according to any one of Items 1 to 4 .